Comparison of Personal or Indoor PM_2.5 Exposure Level to That of Outdoor: Over Four Seasons in Selected Urban, Industrial, and Rural Areas of South Korea: (K-IOP Study).

ABSTRACT: This study aimed to compare the distribution of indoor, outdoor, and personal PM_2.5 (particulate matter ≤ 2.5 μm) hourly concentrations measured simultaneously among 81 nonsmoking elderly participants (65 years or older) living in urban, industrial, or rural areas over 4 seasons (2 weeks per season) from November 2021 to July 2022). PM_2.5 measurements were conducted using low-cost sensors with quality control and quality assurance tests. Seasonal outdoor PM_2.5 levels were 16.4 (9.1-29.6) μg/m³, 20.5 (13.0-38.0) μg/m³, 18.2 (10.2-31.8) μg/m³, and 9.5 (3.8-18.7) μg/m³ for fall, winter, spring, and summer, respectively. For indoor PM_2.5, the median seasonal range was 5.9-7.5 μg/m³, and the media

SUBMITTER: Song C 

PROVIDER: S-EPMC10487920 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature